Former African Union Commission chairman Jean Ping says he will run for presidency in Gabon, this year. Ping a leading critic of current Gabonese President Ali Bongo, hopes to break the ruling party's near 50-year grip on power. Bongo, the son of long-time ruling former president Omar Bongo, won a disputed election in 2009, after his father's death. He is currently favored to win the August election and secure a second mandate to rule the Central African oil producer. Seventy three-year-old Ping was a one-time ally of Omar Bongo, but has been at loggerheads with his son Ali Bongo, since youths attacked his house a year ago. Speaking about his candidature Ping said he wanted to make the presidency more accountable.